In green plants, the primary function of the Calvin cycle is to
A) split water and release oxygen.
B) use ATP to release carbon dioxide.
C) use NADPH to release carbon dioxide.
D) construct the building blocks of simple sugars from carbon dioxide.
E) transport glucose out of the chloroplast.
D
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The primary thermostat of the body is located
in the a. heart. b. hypothalamus. c. medulla oblongata. d. cerebellum. e. thyroid gland.
The follicular phase of the menstrual cycle is the
time of a. menstruation. b. endometrial breakdown. c. endometrial rebuilding. d. oocyte maturation. e. all of these.
X-ray diffraction studies are used to determine:a
the sequence of amino acids in protein molecules. b. the sequence of nucleic acids in nucleic acid molecules. c. the distances between atoms of molecules. d. the type of chemical under investigation. e. the wavelength of light emitted by chemicals
The function of helicase enzymes is to ____.
A. break hydrogen bonds between the two strands of the DNA molecule prior to replication B. rewind the two DNA molecules after replication C. remove bases that might have been inserted incorrectly D. seal new short stretches of nucleotides into one continuous strand E. fragment old DNA that is no longer of use to the cell